1.119 Find more proportions. Using either Table A or your calculator or software, find the proportion of observations from a standard Normal distribution for each of the following events. In each case, sketch a standard Normal curve and shade the area representing the proportion.
(a) Z ≤ −1.4
(b) Z ≥ −1.4
(c) Z > 2.0
(d) −1.4 < Z < 2.0